Brandon Miller Curve Straightening used to turn a curved graph (y α 1/x2) into a linear graph (y = mx + b) : force vs.
separation in Coulomb's Law. Fe = kq1q2/r2
If we turn this graph into a linear graph, we determine the graph's slope, which could tell us: the experimental value of k and the magnitude of the charges.
Data Table:
x y
1 5
2 7
3 11
4 19
5 26
6 40 Step 1: Look at the graph and data. Determine the relationship. This is a squared relationship. Step 2: Take all x values and square them. Step 3: Replot the graph. It will now be a straight line. Now we are able to do a slope calculation on it.
Curve Straightening
From physick.wikispaces.com
Brandon MillerCurve Straightening used to turn a curved graph (y α 1/x2) into a linear graph (y = mx + b) : force vs.
separation in Coulomb's Law.
Fe = kq1q2/r2
If we turn this graph into a linear graph, we
Data Table:
x y
1 5
2 7
3 11
4 19
5 26
6 40
Step 1: Look at the graph and
data. Determine the
relationship. This is a squared
relationship.
Step 2: Take all x values
and square them.
Step 3: Replot
the graph. It will
now be a straight line.
Now we are able to do a slope calculation on it.
References:
ldindustries.ca
http://www.bbc.co.uk/schools/gcsebitesize/maths/images/graph_6.gif